Crosshole georadar measurements on an Alpine rock glacier
Details
Serval ID
serval:BIB_364FB40BD9C0
Type
Inproceedings: an article in a conference proceedings.
Collection
Publications
Institution
Title
Crosshole georadar measurements on an Alpine rock glacier
Title of the conference
14th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems
Organization
Environmental & Engineering Geophysical Society
Publication state
Published
Issued date
2001
Pages
GP2-2
Language
english
Abstract
To investigate the internal structure of a rock glacier in the eastern
Swiss Alps, traveltime and amplitude tomographic inversions have
been applied to borehole georadar data. Pronounced variations of
electromagnetic velocity at the study site required a nonlinear inversion
algorithm to be applied. Traveltimes and amplitudes provided complementary
subsurface information, such that a joint analysis of the resulting
velocity and attenuation tomograms allowed an enhanced interpretation
of the data. Features resolved included two distinct zones of enriched
ice content, a sharp transition between frozen and unfrozen material,
and a highly attenuating zone within the bedrock.
Swiss Alps, traveltime and amplitude tomographic inversions have
been applied to borehole georadar data. Pronounced variations of
electromagnetic velocity at the study site required a nonlinear inversion
algorithm to be applied. Traveltimes and amplitudes provided complementary
subsurface information, such that a joint analysis of the resulting
velocity and attenuation tomograms allowed an enhanced interpretation
of the data. Features resolved included two distinct zones of enriched
ice content, a sharp transition between frozen and unfrozen material,
and a highly attenuating zone within the bedrock.
Create date
25/11/2013 18:28
Last modification date
20/08/2019 13:24
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